utopia

An ideally perfect place, especially in its social, political, and moral aspects.

A work of fiction describing a utopia.

An impractical, idealistic scheme for social and political reform.

An imaginary island, described by Sir Thomas More in a work entitled “Utopia,” published in 1516, as enjoying the utmost perfection in law, politics, etc. Hence [lowercase] A place or state of ideal perfection.

Any imaginary region.

In entomology, a genus of coleopterous insects.

An imaginary island, represented by Sir Thomas More, in a work called Utopia, as enjoying the greatest perfection in politics, laws, and the like. See Utopia, in the Dictionary of Noted Names in Fiction.

Hence, any place or state of ideal perfection.

A world in which everything and everyone works in perfect harmony.